MOLD PREVENTION AND DISINFECTION
Excessive moisture can lead to the growth of mold inside of homes
and buildings. Leaks from roofs, plumbing or window frames cause the biggest problems. Couple
excessive moisture with a lack of ventilation and you have created an ideal environment for mold and mildew fungus
to grow. The key to successful mold prevention and control is to reduce indoor moisture and make certain you have
proper ventilation. It is not possible to remove all mold and mold spores indoors, but mold will not grow if
moisture is not present.
The best ways to prevent mold from forming is cleaning, disinfecting and drying
surfaces which will help to prevent mold growth. Mold will grow on damp surfaces within a couple days at normal
room temperatures. Reduce moisture levels in the bathroom by running an exhaust fan during and after showers. Fix
plumbing leaks and seepage to prevent the buildup of moisture and prevent the growth of molds. Also, ventilate with
outside air during the winter when outside temperatures are colder than indoor temperatures. Ventilating with warm
summer air typically increases the air's relative humidity in a basement. Insulating walls and installing storm
windows keeps walls warm and keeps condensation levels low.
How do you determine if you have mold or mildew? Begin by looking under carpets,
flooring and behind wallpaper. If mold is present in your home these are likely places for mold to form.
Next, look in your bathroom since there is normally abundant moisture present. Look
at the area surrounding the toilet. Try to gently rock your toilet back and forth. If it does not move then you are
in good shape. If it does move then you may have a problem. This usually means that the wax ring under the toilet
is leaking and is not getting a tight seal. If that is the case you can replace the wax seal at very little cost.
Also look around the walls of the shower or tub and also the floor surrounding it. Make sure that the caulking
around the tub or shower is in good condition and is not turning dark. If it is, then it is time to
recaulk.
Look next in your laundry room and check the hoses to your washer and make sure there
is a tight connection. You may want to install a watertight pan to catch overflows.
Kitchens are also possible sites for mold growth if you are not using an exhaust fan.
Refrigerator pans in automatic defrosting refrigerators also are a very common place for mold to grow.
Lets look at some of the surfaces that you commonly encounter mold and what is the
best method for removal.
For a painted surface inside your home, scrub moldy surfaces with a solution of 1 cup
of household bleach to 1 gallon water. A little detergent may be added to the solution, but do not mix bleach with
cleaners containing ammonia. Rinse with clean water and allow to dry thoroughly.
For bathrooms, scrub surfaces with a solution of 1 cup household bleach, 1 tablespoon
detergent that does not contain ammonia and 1 gallon water. Keep the surface wet for about 10 minutes, then rinse
well with water and dry.
For untreated wood or wood shingles, scrub surfaces with a solution of 1 quart
household bleach and 1 ounce detergent in 3 quarts water. Rinse thoroughly. If stains remain, increase the
concentration of bleach to water and re-treat.
For carpets or rugs, discard pads containing mold. It is almost impossible to clean
and destroy all the mold in a pad. If you do try to save the carpet yourself, apply rug shampoo with a carpet
shampooer. Place the carpet or rug outside in direct sunlight. Using 1/4 teaspoon household bleach to 1 cup water
apply the solution to the backing of the carpet and rinse thoroughly. After shampooing and sanitizing, dry the
carpet or rugs by laying outdoors in the direct sunlight.
Remember, if you find patches of mold anywhere in your home, it is very important to
kill and clean it up quickly to prevent further growth. It is also important to stop the source of moisture
also.
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